Interesting pictures. I'd never seen a SEAS A-25 with the port above the tweeter until your post and that other post from Asia.

The A-35xl (with the round port?) looks like it uses standard SEAS drivers, at least not the XL tweeter. How does it sound?

The regular A-35 can always be told from the A-40XL by the newer, smaller tweeter in the A-40XL, right? The A-40 is also very slightly larger according to that unofficial Dynaco website everyone sites (Greg Dunn).